I am somewhat confused on which heater hose clamps are required on a 1967 427/400 air conditioned coupe. I have all the clamps sorted out except the heater hose that runs from the water pump to the heater core. The judging guide requires an adjustable side clamp for the water pump fitting hose. On the end that attaches to the heater core, the Corbin clamp, will not fit tight enough to not leak. I have tried several repro Corbin clamps. I also need a fan clutch for this car.Where can you find these parts? Thanks !! Jim Carmain #37003